Which one of the following statements is correct, with reference to enzymes?

1. Apoenzyme = Holoenzyme + Coenzyme

2. Holoenzyme = Apoenzyme + Coenzyme

3. Coenzyme = Apoenzyme + Holoenzyme

4. Holoenzyme = Coenzyme + Cofactor

Which of the following is an organic compound?

1. Prosthetic group

2. Coenzymes

3. Metal ions

4. Both A and B

The Cofactor present in the Enzyme Catalase is

1. NADP

2. NAD

3. Haem

4. Zn

The Cofactor present in the Enzyme Peroxidase is

1. NADP

2. NAD

3. Haem

4. Zn

Which of the following organic compound association with the apoenzyme is only transient?

1. Prosthetic group

2. Coenzymes

3. Metal ions

4. Both A and B

The essential chemical components of many coenzymes are

1. Metal ions

2. Vitamins

3. Heme

4. NAD and NADP

Which of the following contain the vitamin niacin?

1. NAD

2. NADP

3. Heme

4. Both A and B

Consider the following statements:

(A) Coenzymes or metal ion that is tightly bound to enzyme protein is called prosthetic group.

(B)A complete catalytic active enzyme with its bound prosthetic group is called apoenzyme.

Select the correct option:

1. (A)is false but (B)is true

2.  Both (A) and (B)are true

3. (A) is true but (B) is false.

4. Both (A) and (B) are false.

Which of the following cofactor is essential for the proteolytic enzyme carboxypeptidase?

1. Zinc

2. Copper

3. Magnesium

4. Iron

Which of  the following are co-factors?

1. Co-enzymes

2. Metal ions

3. Posthetic groups

4. All of these